我又要去面对考试的折磨了,忍不住,出到题目来玩玩~~~~~~~~~~
Which of the following could not be readily determined by a mass spectrometer?
A. The atomic number of an element
B. The relative atomic mass of an element
C. The mass number of an isotope
D. The number of isotopes in a sample of an element
这个是化学题目,答案公布在下一章里..........